Which one of the following statements concerning the General Public License (GPL) is true?
A. The GPL is designed to ensure that the source code of a software remains freely available.
B. The GPL is identical to the BSD license.
C. GPL software may never be sold for money.
D. If you change a program you received under the GPL, you must send your changes to the original author for approval.
E. GPL software may not be used to run nuclear reactors or air traffic control systems.
Which of the following are correct commands for changing the current directory to the user's home? (Choose TWO answers)
A. cd /home
B. cd ~
C. cd ..
D. cd
E. cd /
How could one search for the file foo.txt under the directory /home?
A. search /home -file foo.txt
B. search /home foo.txt
C. find /home -file foo.txt
D. find /home -name foo.txt
E. find /home foo.txt
Which of the following commands will set the variable text to olaf is home? (Select TWO answers)
A. text=olaf\ is\ home
B. text=$olaf is home
C. $text='olaf is home'
D. text=='olaf is home'
E. text="olaf is home"
Which of the following hardware devices links a number of computers together to form an Ethernet LAN?
A. Server
B. Switch
C. Connector
D. Access point
E. Terminal
Which criteria are useful when deciding which operating system to use? (Choose THREE correct answers.)
A. License costs.
B. Ideological preferences of the system administrator.
C. Linux can do everything, there is no need for further evaluation.
D. Availability of mandatory applications and tools.
E. Skills of the administrators and staff.
Which of the following Ubuntu releases is considered most stable and fit to use for business purposes?
A. LTS
B. Xubuntu
C. Ubuntu Vanilla
D. Kubuntu
E. Xubuntu Server
Given the following directory permissions:
drwxrwxrwt 14 root root 36864 2012-03-02 11:17 /tmp
What does the letter t at the end of drwxrwxrwt indicate?
A. It is the sticky bit that causes all commands in this directory to be launched as root.
B. It means that even though the directory is globally writable only the owner can delete their own files.
C. It makes the directory accessible for everybody.
D. It indicates that this directory contains only temporary files that may be deleted.
E. It is a temporary bit that prevents launching commands in this directory.
Which statement about users and user groups is correct?
A. A group can only have one main user.
B. There can be only one user group on a system.
C. Users do not have to belong to a user group.
D. Every user belongs to a least one user group.
You have a program called /usr/bin/foo. You wish to create a symbolic link, /home/user/foo, that points to it. Which command will do this task?
A. ln -sym /home/user/foo /usr/bin/foo
B. ln -s /usr/bin/foo /home/user/foo
C. ln /home/user/foo /usr/bin/foo
D. ln /usr/bin/foo /home/user/foo
E. ln --symlink /home/user/foo /usr/bin/foo